CVE-2025-4948

Publication date 19 May 2025

Last updated 17 July 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

A flaw was found in the soup_multipart_new_from_message() function of the libsoup HTTP library, which is commonly used by GNOME and other applications to handle web communications. The issue occurs when the library processes specially crafted multipart messages. Due to improper validation, an internal calculation can go wrong, leading to an integer underflow. This can cause the program to access invalid memory and crash. As a result, any application or server using libsoup could be forced to exit unexpectedly, creating a denial-of-service (DoS) risk.

Status

Package Ubuntu Release Status
libsoup2.4 25.04 plucky
Fixed 2.74.3-10ubuntu0.4
24.10 oracular Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 2.74.3-6ubuntu1.6
22.04 LTS jammy
Fixed 2.74.2-3ubuntu0.6
20.04 LTS focal
Fixed 2.70.0-1ubuntu0.5+esm1
18.04 LTS bionic
Fixed 2.62.1-1ubuntu0.4+esm6
16.04 LTS xenial
Fixed 2.52.2-1ubuntu0.3+esm5
libsoup3 25.04 plucky
Fixed 3.6.5-1ubuntu0.2
24.10 oracular Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 3.4.4-5ubuntu0.5
22.04 LTS jammy
Fixed 3.0.7-0ubuntu1+esm5
20.04 LTS focal Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libsoup3

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references